DELTOID ES. 283 



been a variety of some other species. One also was recorded 

 at Hull in 1896. Possibly, if all the old rotten woodwork 

 in the cellars and other structures along the banks of the 

 Thames could be examined, the results would be by no 

 means so meagre. Probably the climate of this country is 

 unsuitable to its constitution, so that it can only exist in 

 specially sheltered and secluded spots. Abroad it is not 

 scarce, and appears to find suitable food growing in more 

 exposed positions. It is found throughout Central Europe, 

 the more temperate portions of Northern Europe, Northern 

 Italy, the Balkan States, Eastern Siberia, and Asia Minor. 



Genus 3. MADOPA. 



Antennas thickly ciliated; palpi only moderately long, 

 tapering, porrected or pointing obliquely downward, thinly 

 scaled ; eyes very full, naked, without lashes ; head having a 

 long tuft of scales projecting forward over the palpi ; thorax 

 and abdomen smooth and rather slender; fore wings broad 

 and truncate ; hind wings broad ; legs normal. 



We have but one species. 



1. M. salicalis, Schiff. — Expanse 1 to 1^ inch. Body 

 slender; fore wings somewhat trigonate, retuse, and full 

 behind, slate-grey, with three transverse chocolate lines, the 

 third running into the apex. Hind wings brownish-white 

 with a faint transverse streak. 



Antennas of the male short, strongly ciliated, with fine 

 bristles rather resembling pectinations ; palpi not very long, 

 horizontal, broadly but smoothly covered with scales, chest- 

 nut-brown ; eyes prominent, brown, naked ; head smooth, 

 the scales lying prostrate but pointing forwards in a produced 

 tuft which almost overlies the palpi ; thorax small and narrow, 

 smooth, slate-grey ; fascicles short, white ; abdomen rather 

 slender, smooth, hoary-grey ; lateral tufts very inconspicuous, 

 anal tuft thick. Fore wings somewhat trigonate, smooth, 



